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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI] igt@kms_chamelium@*-edid-change-during-suspend - fail/dmesg-fail - Failed assertion: igt_hotplug_detected(mon, HOTPLUG_TIMEOUT)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105540#c13">Comment # 13</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI] igt@kms_chamelium@*-edid-change-during-suspend - fail/dmesg-fail - Failed assertion: igt_hotplug_detected(mon, HOTPLUG_TIMEOUT)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105540">bug 105540</a>
from <span class="vcard"><a class="email" href="mailto:stanislav.lisovskiy@intel.com" title="Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>"> <span class="fn">Stanislav Lisovskiy</span></a>
</span></b>
<pre>There are some problems, like i915_hotplug_work_func was actually not calling
drm_helper_hpd_irq_event(dev) which we rely on, but
drm_kms_helper_hotplug_event(dev) which I guess is wrong as
drm_helper_hpd_irq_event itself calls drm_kms_helper_hotplug_event after doing
some checks and those patches rely on that drm_helper_hpd_irq_event is called.
Also the edid blob ptr doesn't get updated during probe after suspend, because
driver still uses the cached version( I checked that), which makes it
impossible to check that the edid actually got changed because the pointer and
blob is the same!
To fix this need to call drm_edid_duplicate in drm_helper_hpd_irq_event before
doing probing(drm_helper_probe_detect) which will modify
connector->edid_blob_ptr and copy it to another blob then compare to the new
one.
Currently I'm implementing those fixes.</pre>
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